IBM-CPC (1960)
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IBM Card Programmed Calculator (CPC)
In the back, Jack Herriot's hand inserting the programing panel into the Stanford CPC.
Collator Wiring Panel, smaller version of panel type used to program input/output for the CPC [CMHC].
Example of Relay technology: Remington-Rand Univac Relay Assembly [DH] (1960)